Easy to set up and works great with mailchip right away but very limiting in the design department. Since you cannot adjust the size of the pop up, some of our clients complained that the close (x) button basically hides depending on the size of the browser window and were unable to close the pop up. I opened a support ticket and they responded right away and tried to understand our issue... Until I sent them a screenshot of what some of our clients were experiencing. After that I no longer received responses to my emails even though I followed up several times. Basically ignored my problem.